Peterbilt 357/378 Parts

Find the best Peterbilt 378 aftermarket parts in the business here at 4 State. The Peterbilt 378 semi truck represents all of the characteristics of the Peterbilt brand, and was a popular model with similar features to the Peterbilt 379. Pete truck models are a brand of choice for experienced truckers who need dependable semi trucks. 4 State Trucks has all the semi truck parts and accessories you need to make your Pete 378 stand out to showcase your unique personality. Whether you need aftermarket bumpers, exhaust, or fuel tanks, we've got you covered. Hit the open road in style and comfort with the best custom gear for your Peterbilt heavy duty truck or 18 wheeler.

Product
Qty in Cart
Quantity
Price
Subtotal

4 Inch Yellow Polyester Ratchet Strap - 5400 Lb WLL

AFTERMARKET

MSRP:

Now: $61.99 - $116.99

Was:

Choose Option(s) to see description.Fitment** Universal - Fits Multiple Makes & Models Of Trucks4 Inch X 27 Ft Ratchet Strap W/ #215 Flat Hook- 5400 Lb WLL4 Inch X 27 Ft Ratchet Strap W/ Flat Hook*...

PPR_299358

SKU:

PPR_299358

Material Options:

Polyester

Length Options:

360 Inch

Color:

Yellow

Width Options:

4 Inch

Product Type:

Cargo Control

Rating:

20000 LBS

Make:

Universal Items

MSRP:

Now: $61.99 - $116.99

Was:

Qty in Cart: 0

Price:

MSRP:

Now: $61.99 - $116.99

Was:

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Cam Buckle Strap 2 Inch Feet With E-Fittings & F Wire Hooks

AFTERMARKET

MSRP:

Now: $16.16 - $18.84

Was:

Choose Option(s) to see description.Fitment** Universal - Fits Multiple Makes & Models of Trucks2 Inch X 12 Ft Cam Buckle Strap W/ E Fittings & F Wire Hooks- 500 Lb WLL, 1500 Lb Breaking Strength2...

PPR_299342

SKU:

PPR_299342

Color:

Gray

Product Type:

Cargo Control

Length Options:

240 Inch

Color:

Blue

Width Options:

2 Inch

Length Options:

144 Inch

Length Options:

192 Inch

Color:

Yellow

Material Options:

Polyester

Material Options:

Plastic/Poly

Make:

Universal Items

MSRP:

Now: $16.16 - $18.84

Was:

Qty in Cart: 0

Price:

MSRP:

Now: $16.16 - $18.84

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4 Inch Yellow Polyester Winch Strap

AFTERMARKET

MSRP:

Now: $15.90 - $56.99

Was:

Choose Option(s) to see description.Fitment** Universal - Fits Multiple Makes & Models of Trucks4 Inch X 27 Ft Winch Strap W/ Sewn Eye- 5400 Lb WLL4 Inch X 27 Ft Winch Strap W/ Sewn Eye* High Quality...

PPR_299345

SKU:

PPR_299345

Length Options:

360 Inch

Material Options:

Polyester

Width Options:

4 Inch

Color:

Yellow

Rating:

20000 LBS

Product Type:

Cargo Control

Make:

Universal Items

MSRP:

Now: $15.90 - $56.99

Was:

Qty in Cart: 0

Price:

MSRP:

Now: $15.90 - $56.99

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2 Inch Abrasion Resistant Super Edge Orange Polyester Ratchet Strap

AFTERMARKET

MSRP:

Now: $25.46 - $46.70

Was:

Choose Option(s) to see description.Fitment** Universal - Fits Multiple Makes & Models Of Trucks2 Inch X 8 Ft Abrasion Resistant Super Edge Strap W/ RTGJ Hook & 1 Ft Chain Tail- 3335 Lb WLL2 Inch X 8...

PPR_299351

SKU:

PPR_299351

Color:

Orange

Product Type:

Cargo Control

Rating:

10000 LBS

Material Options:

Polyester

Length Options:

96 Inch

Width Options:

2 Inch

Make:

Universal Items

MSRP:

Now: $25.46 - $46.70

Was:

Qty in Cart: 0

Price:

MSRP:

Now: $25.46 - $46.70

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2 Inch Steel Series J Wire Hook

AFTERMARKET

MSRP:

Now: $4.23 - $4.86

Was:

Choose Option(s) to see description.Fitment** Universal - Fits Multiple Makes & Models of Trucks2 Inch Steel Series J Wire Hook- 1660 Lb WLL, 5000 Lb Breaking Strength2 Inch Steel Series J Wire Hook*...

PPR_299338

SKU:

PPR_299338

Material Options:

Steel

Width Options:

2 Inch

Rating:

5000 LBS

Rating:

10000 LBS

Product Type:

Cargo Control

Make:

Universal Items

MSRP:

Now: $4.23 - $4.86

Was:

Qty in Cart: 0

Price:

MSRP:

Now: $4.23 - $4.86

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Subtotal:
Rubber Tarp Straps 50PK

AFTERMARKET

MSRP:

Now: $54.99 - $131.99

Was:

Choose Option(s) to see description.Fitment** Universal - Fits Multiple Makes & Models of Trucks9 Inch Black Rubber Tarp Straps- 50 Pack9 Inch Rubber Tarp Straps* High Quality Tarp Strap* With...

PPR_299340

SKU:

PPR_299340

Color:

Black

Length Options:

11 Inch

Material Options:

Rubber

Height Options:

9 Inch

Width Options:

12 1/2 Inch

Length Options:

18 Inch

Product Type:

Cargo Control

Width Options:

11 Inch

Height Options:

6 Inch

Width Options:

8 1/2 Inch

Length Options:

15 Inch

Height Options:

5 Inch

Width Options:

10 1/2 Inch

Length Options:

13 1/4 Inch

Make:

Universal Items

MSRP:

Now: $54.99 - $131.99

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Qty in Cart: 0

Price:

MSRP:

Now: $54.99 - $131.99

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FREE SHIPPING OVER $249

8 X 8 Inch Blue Plastic Corner Protector

AFTERMARKET

MSRP:

Now: $25.74 - $37.80

Was:

Choose Option(s) to see description.Fitment** Universal - Fits Multiple Makes & Models Of Trucks8 X 8 X 36 Inch Blue Plastic Corner Protector8 X 8 X 36 Inch Plastic Corner Protector* High Quality...

PPR_299341

SKU:

PPR_299341

Length Options:

36 Inch

Product Type:

Cargo Control

Height Options:

8 Inch

Color:

Blue

Material Options:

Plastic/Poly

Length Options:

48 Inch

Truck Class:

Universal

Width Options:

8 Inch

Make:

Universal Items

Ready To Ship:

Yes

MSRP:

Now: $25.74 - $37.80

Was:

Qty in Cart: 0

Price:

MSRP:

Now: $25.74 - $37.80

Was:

Subtotal:
2 Inch Orange Polyester Winch Strap W/ Super Edge Zone Webbing

AFTERMARKET

MSRP:

Now: $16.26 - $32.64

Was:

Choose Option(s) to see description.Fitment** Universal - Fits Multiple Makes & Models of Trucks2 Inch X 27 Ft Super Edge Zone Winch Strap W/ Sewn Eye- 3335 Lb WLL2 Inch X 27 Ft Super Edge Zone Winch...

PPR_299347

SKU:

PPR_299347

Length Options:

360 Inch

Rating:

10000 LBS

Color:

Orange

Material Options:

Polyester

Product Type:

Cargo Control

Material Options:

Plastic/Poly

Width Options:

2 Inch

Rating:

12000 LBS

Make:

Universal Items

MSRP:

Now: $16.26 - $32.64

Was:

Qty in Cart: 0

Price:

MSRP:

Now: $16.26 - $32.64

Was:

Subtotal:
Yellow Exterior Tiedown Webbing 300 Feet Rolls

AFTERMARKET

MSRP:

Now: $120.99 - $181.99

Was:

Choose Option(s) to see description.Fitment** Universal - Fits Multiple Makes & Models of Trucks2 Inch X 300 Ft Yellow Exterior Tie Down Webbing- 12000 Lb Breaking Strength2 Inch X 300 Ft Yellow...

PPR_299336

SKU:

PPR_299336

Material Options:

Polyester

Rating:

20000 LBS

Color:

Yellow

Rating:

15000 LBS

Rating:

12000 LBS

Width Options:

4 Inch

Product Type:

Cargo Control

Width Options:

3 Inch

Width Options:

2 Inch

Make:

Universal Items

MSRP:

Now: $120.99 - $181.99

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Qty in Cart: 0

Price:

MSRP:

Now: $120.99 - $181.99

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Oversize/Wide Load Banners

AFTERMARKET

MSRP:

Now: $24.96 - $33.53

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Choose Option(s) to see description.Fitment** Universal - Fits Multiple Makes & Models of Trucks18 X 84 Inch Oversize Load Mesh Banner W/ GrommetOversize Load Mesh Banner W/ Grommet- 18 X 84 Inch*...

PPR_299334

SKU:

PPR_299334

Color:

Yellow

Product Type:

Cargo Control

Material Options:

Vinyl

Material Options:

Mesh

Height Options:

18 Inch

Width Options:

84 Inch

Style Options:

Grommet Mount

Make:

Universal Items

MSRP:

Now: $24.96 - $33.53

Was:

Qty in Cart: 0

Price:

MSRP:

Now: $24.96 - $33.53

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Subtotal:
2 Inch Interior Van Webbing 300 Feet Rolls BS 2,700 kgs/6,000 lbs

AFTERMARKET

MSRP:

$99.99

Was:

Choose Option(s) to see description.Fitment** Universal - Fits Multiple Makes & Models of Trucks2 Inch X 300 Ft Yellow Interior Tie Down Webbing- 6000 Lb Breaking Strength2 Inch X 300 Ft Yellow...

PPR_299337

SKU:

PPR_299337

Color:

Blue

Material Options:

Polyester

Color:

Yellow

Width Options:

2 Inch

Color:

Gray

Rating:

6000 LBS

Product Type:

Cargo Control

Make:

Universal Items

MSRP:

$99.99

Was:

Qty in Cart: 0

Price:

MSRP:

$99.99

Was:

Subtotal:
Magnet W/ Steel Cup

AFTERMARKET

MSRP:

Now: $13.19 - $16.76

Was:

Choose Option(s) to see description.Fitment** Universal - Fits Multiple Makes & Models of Trucks90 Lb Magnet W/ Steel CupSteel 90 Lb Magnet* High Quality Magnetic Flag Holder* 90 Lb Pull* With Steel...

PPR_299330

SKU:

PPR_299330

Product Type:

Cargo Control

Material Options:

Steel

Color:

Silver

Style Options:

Magnetic Mount

Make:

Universal Items

MSRP:

Now: $13.19 - $16.76

Was:

Qty in Cart: 0

Price:

MSRP:

Now: $13.19 - $16.76

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Subtotal:
4K Ratchet Strap W/ E Fittings & F Wire Hooks- 500 Lb WLL, 1500 Lb Breaking Strength

AFTERMARKET

MSRP:

Now: $16.98 - $18.74

Was:

Choose Option(s) to see description.Fitment** Universal - Fits Multiple Makes & Models of Trucks2 Inch X 12 Ft 4K Ratchet Strap W/ E Fittings & F Wire Hooks- 500 Lb WLL, 1500 Lb Breaking Strength2...

PPR_299343

SKU:

PPR_299343

Length Options:

144 Inch

Product Type:

Cargo Control

Color:

Yellow

Color:

Gray

Color:

Blue

Material Options:

Polyester

Length Options:

240 Inch

Length Options:

192 Inch

Width Options:

52 Inch

Width Options:

2 Inch

Make:

Universal Items

MSRP:

Now: $16.98 - $18.74

Was:

Qty in Cart: 0

Price:

MSRP:

Now: $16.98 - $18.74

Was:

Subtotal:
Steel Delta Ring

AFTERMARKET

MSRP:

Now: $4.28 - $11.03

Was:

Choose Option(s) to see description.Fitment** Universal - Fits Multiple Makes & Models of Trucks2 Inch Steel D Ring- 1600 Lb WLL, 5000 Lb Breaking StrengthGold 2 Inch Steel D Ring* High Quality D...

PPR_299332

SKU:

PPR_299332

Rating:

11000 LBS

Width Options:

2 Inch

Material Options:

Steel

Product Type:

Cargo Control

Rating:

5000 LBS

Rating:

20000 LBS

Shape Options:

D-Shape

Width Options:

4 Inch

Width Options:

3 Inch

Make:

Universal Items

MSRP:

Now: $4.28 - $11.03

Was:

Qty in Cart: 0

Price:

MSRP:

Now: $4.28 - $11.03

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Subtotal:
2 Inch Steel Snap Hook

AFTERMARKET

MSRP:

Now: $4.38 - $4.65

Was:

Choose Option(s) to see description.Fitment2 Inch Steel 5K Flat Snap Hookme0729252 Inch Steel 5K Flat Snap Hook- 2000 Lb WLL, 6600 Lb Breaking StrengthGold 2 Inch Steel 5K Flat Snap Hook* High...

PPR_299333

SKU:

PPR_299333

Material Options:

Steel

Length Options:

2 Inch

Rating:

11000 LBS

Rating:

6000 LBS

Product Type:

Cargo Control

Make:

Universal Items

MSRP:

Now: $4.38 - $4.65

Was:

Qty in Cart: 0

Price:

MSRP:

Now: $4.38 - $4.65

Was:

Subtotal:
Steel Clevis Hook

AFTERMARKET

MSRP:

Now: $9.90 - $19.83

Was:

Choose Option(s) to see description.Fitment** Universal - Fits Multiple Makes & Models of Trucks3/8 Inch Steel Clevis Hook- 5400 Lb WLL, 16200 Lb Breaking StrengthGold 3/8 Inch Steel Clevis Hook*...

PPR_299339

SKU:

PPR_299339

Material Options:

Steel

Diameter Options:

3/8 Inch

Diameter Options:

5/16 Inch

Rating:

4700 LBS

Rating:

6000 LBS

Diameter Options:

1/2 Inch

Product Type:

Cargo Control

Make:

Universal Items

MSRP:

Now: $9.90 - $19.83

Was:

Qty in Cart: 0

Price:

MSRP:

Now: $9.90 - $19.83

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Lime Green 18 Inch Seat Belt Sleeve

AFTERMARKET

MSRP:

$4.83

Was:

18 Inch Seat Belt Sleeve- Lime GreenBoost safety and comfort with the Lime Green 18 Inch Seat Belt Sleeve, designed to fit standard-sized seatbelts and increase visibility. Constructed from durable...

09-192000225

SKU:

09-192000225

Product Type:

Seats

Length Options:

18 Inch

Material Options:

Polyester

Color:

Green

Width Options:

2 Inch

Make:

Universal Items

MSRP:

$4.83

Was:

Qty in Cart: 0

Price:

MSRP:

$4.83

Was:

Subtotal:
White Poly Safety Helmet

AFTERMARKET

MSRP:

$14.55

Was:

Safety Helmet- WhiteStay safe on the job with the White Poly Safety Helmet, designed for professionals who demand comfort and compliance. Made of high-density polyethylene, it features an adjustable...

09-23000321

SKU:

09-23000321

Material Options:

Plastic/Poly

Color:

White

Product Type:

Air, Electrical, & Safety

Make:

Universal Items

MSRP:

$14.55

Was:

Qty in Cart: 0

Price:

MSRP:

$14.55

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Subtotal:
18 X 18 Inch Safety Flag

AFTERMARKET

MSRP:

Now: $5.35 - $7.88

Was:

Choose Option(s) to see description.Fitment** Universal - Fits Multiple Makes & Models of Trucks18 X 18 Inch Orange Jersey Flag W/ GrommetsOrange Jersey Flag W/ Grommets- 18 X 18 Inch* High Quality...

PPR_299335

SKU:

PPR_299335

Height Options:

18 Inch

Color:

Red

Material Options:

Mesh

Style Options:

Grommet Mount

Product Type:

Cargo Control

Width Options:

18 Inch

Color:

Orange

Material Options:

Polyester

Make:

Universal Items

Ready To Ship:

Yes

MSRP:

Now: $5.35 - $7.88

Was:

Qty in Cart: 0

Price:

MSRP:

Now: $5.35 - $7.88

Was:

Subtotal:
6 Ft Stainless Steel Over The Frame Deck Plate

IOWA CUSTOMS

MSRP:

$744.99

Was:

6 Ft Over The Frame Deck PlateAdd both protection and polish to your truck with the 6 Ft Stainless Steel Over The Frame Deck Plate. Made from #8 304 stainless steel, its over-the-frame design ensures...

09-0503000013

SKU:

09-0503000013

Length Options:

72 Inch

Finish Options:

Polished

Product Type:

Frame & Chassis

Material Options:

Stainless Steel

Make:

Universal Items

MSRP:

$744.99

Was:

Qty in Cart: 0

Price:

MSRP:

$744.99

Was:

Subtotal:

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The Peterbilt 357 and 378 are known for their no-nonsense durability and old-school style. Whether you’re hauling heavy loads or running construction jobs, these workhorses are built to last—and we’re here to help you keep them in top shape.

Why Choose Aftermarket Peterbilt 357/378 Truck Parts?

- Engineered for your model: Every part is made to fit and function with your 357 or 378—so you can skip the guesswork and get back to work. - Performance you can count on: Keep your truck running strong with engine, transmission, suspension, fiberglass Pete 357/378 hood shells, LED headlights, and cab lighting accessories designed to turn heads. - Trusted brands, proven quality: We only carry parts from manufacturers we trust, so you know you're getting durable, road-tested gear. - Quick shipping, expert help: Get your parts fast and reach out to our team if you need help finding the right fit—we’ve got your back.

Shop the Perfect Aftermarket Accessories for Peterbilt 357/378 Trucks

Whether you're restoring a classic or keeping your work truck rolling, our Peterbilt 357 and 378 parts are built to match the strength and legacy of these iconic models. We stock a wide selection of aftermarket and replacement parts designed specifically for Peterbilt 357 and 378 models. From critical mechanical components to sleek interior cab accessory upgrades, we’ve got what you need to maintain, repair, or customize your rig. Explore our full selection and get the parts you need to keep your rig road-ready.

Frequently Asked Questions About Peterbilt 357/378 Parts

What years and models are compatible with Peterbilt 357/378 parts?

Most aftermarket parts for Peterbilt 357/378 trucks are designed to fit models from 1987 through 2007. However, there are important differences between early models (1987-1999) and later models (2000-2007), particularly in hood mounting points and grille configurations. Always verify the specific year range listed for each part, as some components like bumpers and fenders may have changed mounting hole patterns after the 2000 model year update.

Are aftermarket bumpers as durable as OEM Peterbilt bumpers?

Quality aftermarket bumpers are typically made from 16-gauge steel (same as OEM) and feature triple chrome plating or powder coating for corrosion resistance. The main differences you'll find are in the finishing details and fitment precision. While a well-made aftermarket bumper can last just as long as OEM, pay attention to the warranty offered - reputable manufacturers typically provide at least a 1-year warranty on chrome finish and 3-5 years on structural integrity.

What tools and modifications are needed to install replacement parts?

Most bolt-on parts like bumpers, grilles, and headlight assemblies require basic hand tools including socket sets (typically 1/2" to 3/4"), wrenches, and a drill with metal bits for any minor adjustments. Common installation challenges include slight drilling to align mounting holes (especially on pre-2000 models) and adjusting bumper brackets for proper fitment. Professional installation typically takes 2-4 hours for major components like bumpers or hoods.

What's the difference between chrome, stainless steel, and painted finishes?

Chrome-plated steel offers the brightest mirror finish but requires regular polishing and can pit in harsh climates. Stainless steel (usually 304 grade) provides excellent corrosion resistance with less maintenance but has a slightly duller appearance. Painted finishes are the most economical and can be color-matched to your truck, but may need repainting every 5-7 years depending on exposure. For winter driOEMg or coastal areas, stainless steel typically offers the best long-term value.

How do I ensure proper fitment when ordering hoods, fenders, or bumpers?

Start by confirming your exact model year and checking whether you have a standard or extended hood configuration. Measure key mounting points on your current parts before ordering - bumper width should be either 18" or 20" depending on your model. For hoods and fenders, verify whether you have the single-headlight or dual-headlight configuration. When in doubt, provide your OEM number when ordering to ensure compatibility, as some mid-year production changes aren't reflected in standard model year listings.